1. CMS Masterclass 2016
for Moderators

2. CMS masterclass features
3000 events: W
Z, J/Y, U
10 H gg, repeated
3 H ZZ, repeated
New! iSpy-webgl
CIMA – CMS Instrument for Masterclass Analysis
Updated documentation at
Students find e/m and W+/W-; create dilepton abd Higgs mass plot.

3. About collisions Protons as “bags of partons” Parton-parton collisions
Each parton shares only a portion of proton momentum
W+/W- as probe of proton structure

4. iSpy-online

5. Student tasks Students must distinguish W from Z candidates.
Typical questions are about third lepton track or high missing Et in dilepton event.

6. Student tasks
Students distinguish electron events from muon events.

7. Student Tasks
Students distinguish W+ from W- using track curvature.

8. Student tasks Students look for HZZ and Hgg events.
Occasionally, students “find” too many Higgs candidates.

9. Recording event data Find your dataset.
Record parent particles and decay modes.

10. What you see

11. What you see

12. Additional step with CIMA

13. Additional step with CIMA

14. Combined results

15. Q&A Students might ask:
About individual events  try to keep it general
About double events, like W+W- or WZ (nope)
Life at CERN or Fermilab
Popular doomsdays
You might ask or comment on:
How students decided on specific candidate events
No. of events needed for “good” results
How their day went
Questions for me: